Locking and operating device for trolley switches



I A. H. Rim. LocmNG AND OPERATING nsvrcs rok TROLLEY. s wncHEs.

APPLlCATIQN FILED AUG-31, 1.920.V A

Patented Apr. 25, 1922.

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APPLIcATIoN mau/1m31, 1920.

Patented 111.25, 1922.

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' Patentd A. H.. REIDl LOCKING AND OPERATING DEVICE FOR TROLLEY SWITCHES.

APP'ucArlo'N min Auem, 1920.

UNITE lALEXAnnina H; REID, or cnrcornn, MASSACHUSETTS, AssI'GnoRl-zmc s: TROLLEY TRACK I'aANU-racrniarnacotzifenr,orf cioornn; M A'ssAoHUsETTs-Ag.

'LOCKINGND 'QEBAUNG DEV-ICBF@ ig f f 'Be it known [that I, lALninlNDrin HREiD, a citizen/ of "thefUnited States, and resident of Chicopee, county of Hampdenl'Co-mm'onwealth of Massachusetts, have invented an improvement vin Locking and perating Dei vicesv for Trolley "Switches,V of which the following description, in connection with the accompanyingdrawings, isa' specification,V like characters on the drawings rep-j resent-ing like parts in each'lofuthes'everal views,` This invention relates'to track systems comprising overhead i trolley tracks" 'of ""Ii beams or thelikefor the transferV vof relatively massive obj ects" and bodies from' one part toanother of a Vshop' or'fact'ory.` n

track systems of this kind itQis customary touprovi'de jcalrs bearingl switch track sections for connecting differentv track portions atw1ll,"an apparatus of this klndbeing shown in the prior PatentNoQ1Q026,239 to H. E. Ballard patented 'May 14, 1912.` The principal object-ofthe invention'isfto pro-f` vide improved means for lockingthe switch transfer carin a gi'venfiposition whereit 'holds h'imvabletrack section tormloy italined with' another track section,j "In cordance with my inventiontheflokng-de;

vice .for this purpose is automatically! operable to lock .the car-"securely and'immovably when itrreaches the desired positionand vis'equipped withmanually operable tripin@` means vca able of instantlT releasino 2D J7 E7 the car for'movement when required.j The a track system with a switch track car.

equipped with the invention; Fig. 2 is a relatively enlarged partial' side view of the locking mechanism, adjacent portions of the car and of the fixedV mount-k ing for lthe lock being shown broken away and in section;

3 is a partial top planview of the" locking` mechanism of Fig. 2; and

Figfe -is 4a partial transverse sectional view on line 4-4 of Fig. 3.

i Specification ofLettersiatentq.:

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secured to the ceiling or overhead `structure ed to 'be 'selectively brought finto register .with other track Sections 14 borne fb-y the beam supportsor byfother'car I i Fa honi "i3 thereon will be in' register izivhich inf'tlie form of a' channel* iron; bolted atfonef end; as @indicated at "i6 to intermediate beam 11va 'of 'th L-arll. I

' The Vljhas fixed to its under sidea rack 17 whichis engaged by a pinionl8fxed on a' short i i i i y shaft "I he shaftflQfisfjuI naled in bracketsupports 20. dependingffiroin downward` `fon-manual "operation *and {conf- .stituting means whereby the f ca'r InavQi-be l operated bythe errack 1. I;1,d pinion connection'V when this ilsin position whre i the' fcai" is locked. Thislrail has pivotefdv adjacentits ends fas' indicatedat 2 6 lever bars the;

Shorts @naar 'which v; ext`e1 1p- -ntwad :be yond these' pivots wherefthey Vare'engaged with pull cords Y2 8 shown leadingy downvh ward. to a singleqfdepending cordcrchain 2e for simultanea-r wenn 'by' @he speri@ atlve'." j The' other?A longer' portions of' these lever bars extendl inward toward each other f leaving Vjust room enough between, their inner ends to receive the pin 24. The innerf ends of( these bars are adaptedfto rest'nor-M mally upon a shelf 30 borne by one, of4 the i brackets 2O and when so restingthese arms are preferably "inclined downward atasm'all,y angle as shown in Fig. 2,though 'this 1in'-V clined position isnot essentialf Thus with the partsv inthe positionshowvn in Figgl25 f )the car is locked frommovementfinjeither direction since the pinr24 is held immovable* 'between the ends of the vtwo' bars 27,` thisf holding a track section 13 borneV 'byl the car-f 'correctly alinedandregisteringwith another track section 14, lWhen it is desired to movethe car the cable 29 is pulled down- J A ward thusdrawing up the'inner vends of- 'A theilever bars 27 and permitting the pin 24 to move with/the carin leither direction. VAs the car isfret'ur'iiedffromitstravehthe f pin 24;' will ride under-,one of the bars 27 ingVY itf'from further movement in either di` according to the ldirection in whi'chit may be moved, gradually lifting said bar iintil it reaches the lockingposition' Vwhen thefbary will drop in behind it by-gravity, thus'lockrection' until the barsfare again tripped mane ually. The present devicerthus provides eX- c'eptionally simple and compact means whereby the Vcar is locked automatically after a predetermined movement in either- Vdirection against Afurther movement either in that'direction or 'in the opposite direction'V until the' tripping device isv operated and in combination therewith a1 single tripping devviceadapted to release the car` for move-*f i Iamv aware that ythe invention maybe embodied'in other specific formswithout departing vfrom theV ment )in either direction.

spirit or essential attributes thereof, and I' therefore desire the present embodiment to be' considered in allvrespectsas illustrative the-invention,yA l A and ynotv restrictive, reference being had to the-appended 'claims rather than to the foregoing' ,description tov indicatethe scopefof Having described my invention, what I Vclaim asnew anddesire tof'secu'reby Let#V t'ersPatent'is': v Y

l. Apparatus ofthe kind described, com- Y 5 prising a car bearing one or more switch sections of trolley track, and means for au'- toinatically locking sa-idcar when it reaches a predetermined position, such means consisting in a single stopQmember borne by Y the car, L and devices having a relatively sta,

tionary'mounting and movable toi engage vwith said sto-p member at either sideI thereof, Ywhen the car reaches a predetermined position'f -2. The combination with a carbearing one'oi' more switch sections of trolley track, offineans for automatically locking said car on an over head support,

upon reaching a predetermined position in leither direction of movement, said; means vconsisting in a single stop memberfbornel by thecar, and-niembersmountedV on relatively stationary pivots and rvadapted to .en-

gage said stopf member atopposite sides thereof when the car reaches a predetermined "position to hold tliesamefflockedin such, position, said members'connected together' for' tripping b,I

operated-.elem'entv "tha carmounted The vc :ofmbination of locking means therefor comprising` aloar` projecting from the car bearing a transverse pin, vandflever arms pivoted Vto a relatively stationary mounting having portions extending towards each other adapted to permitsaid pin to -a single manuallyY ride thereunder and tothen drop in'behind the same tolock thercar in definite position. 4. The, combination withljal car mounted on an over head support, of locking means therefor comprising ai bar projecting romj Vthe car bearing a transverse pin, and lever arms` pivoted to afrelatively stationary mounting having `pdrtions extendingftolwards each other adapted to permit said pin to ride thereunder and toy then .drop in behind the sameto `lock the car in denite position, and means for simultaneously engaging said arms to trip the sameA andrelease said pin to permitfcarmovement,

A 5.',The combination, with. aY car mounted on an V over 'head Asupportl f and bearing one ormore track sections, of a bai' ,projectingv from vsaid car equipped with' .operatingl a pin projecting transversely'therefrom, lever bars pivotedto a relatively stationary lsupport/and extending. inwards towards 'ALEXANDER H. REID.V

means Yfor moving V the 'car and also bearing 

